Vehicle



Jan- 9, 1945. c.'.|. E. RYDH 2,367,142'v zwei,

INVENT Carl :Yohan Edu-I fn Rndh Jan. 9, 1945. c. J. E. RYDH VEHICLE Filed April '7, 1943 `5 Sheets-Sheet 2 S NVEJQTQQ 1mg, 1945. J. E. RYDH 2,367,142

Filed April 7, 1943 5 Sheets-Sheet 3 C. J. E. RYDH VEHICLE .Filed April '7, 194s 5 Sheets-Sheet 4 Il lll lNVENT-Oe. Qur-l Johan Edwl'n Tqdh ATTN Jan. 9, 1945. y c. J. E. RYDH 2,367,142

VEHICLE Filed April 7, V1943 5 Sheets-Sheet 5 fk. ATTN- .disks .of the .turntable v.the .ur-per .disk is provided y Van .oll- .llng plug .lccated .on ythe pretest' @plaie Patented Jen. 9, 1945 UNITED 'srArEs im'rauf orrjlfc f Carl .Jalles .lslrrnyhfllrgergglf Swede!! v application .April u, 1943,.;seia141`1losea-12.5

Y 'TheY presen-tV .invention relates to s a device .in vehicles with .trailenin lorder to obtain ay reliable, yet .easy;'and .comfortable connection between traction vehicle and trailer and an equally easy ing mechanism tolock the 'same 1.0.11 the f llpper .disk .of the turntable. on .the :latter .disk Athere f1.0 are provided guide rollerswhich-.gllde 1511.1@ :frame .of the trailer on to theturntable )device so thatv a; connection is .obtained -bptween the traetion vehicle and thc trailer. To ensure ,englisch-.re lubrication .of the wear. surfaces .between the with perforations, and .Qn-.the Edisl; ,there .is prop vided a llubricating :felt @under .a rrete. ...ive j:elate- -Said-.lubricatirlg 4.felt-.is preferably' ence soaked with used oily .from the .meter :illrgcggh ifbeloclsing mechanism for the .eriqQnslst's .0f swingahle :hooks which are locked gbyirlieans cf .stopping andzpawlswll. Chfpreierably argscnnectgd with .e mother.' .scha-Way 25 @that they will wcrkslmultaneeuslr. there rs ereleralzlrialsobslts .i0r-.l0clsing and relsaslrig'tllg IpaWlS- f .transmit thezlsralsepcwsrs were is Dreier: l .ablyfused gradyorfthe 1.-' s, which runs this gh "30 a Centerlboltrforthstu gels disks, .and abr ls@ .cylinder actuating. @hemelse .System-0f their@ er, the braker 'cylinder 'being adapted l0 -Ogsrig te. with the above mentioned rod which in its i is adapted .tobe l,actuated 4by the-,brake device of "3'5 the Vtraction vehicle. -If the invention is applied to traction vehicles With hydraulic brake system,

a hook or the like should be provided to stop the rod running through the center bolt, said rod being via a lever adapted to be actuated by a4() piston in a brake cylinder located in the traction vehicle when the trailer is going to be' disconnected or is being disconnected. When the brake system of the tra'ctionfvehicle is actuated it will thus, irrespective of mechanic, hydraulic or similar'brake system being used, be possible to transmit said actuation to thebrake cylinder on the trailer and thus to the brakes of the trailer.

An embodiment of the invention is illustrated 50 on the accompanying drawings, Yin which Figs. 1 and 2 are side andpla'ne viewsrespectively of the traction vehicle and the trailer.

Fig. 3 shows a back view of the traction vehicle and the 'trailer on a larger` scale partly -in 55.

gifs-ssl' sentieri. .the leaking mechanism beiuglrowevgr omitted .Figs .4 .and s5 .show a bottom slew-.arid a Side vigwrespectiscely .Qthetrailer a larger scale,

the elements. .of .the brake ..aggregatc being omi .ed-

iF s. l@ .and il .show .a yplane riew .0f yille .upper turntable' disk., .with .or without protective .plate respectively.

lThe turntable .teler/leerer .thetractlcn vehicle .l consists .Die lower disk. .andan upper disk 3, leigh. the .lubricating telt 4 fislecatcd under faxtlllfltsctlre @plate .5- i111 -rretectve plate .there che .or 411:10.11@ .Qil .llling ,plugs 6 thrcugll ich .1 he cil can .be supplied t0 the luler.. ating I .wlrlchthe ,oil from the lubri- Wsil th disks- Qrl .ille uriner disk. [tuV ra.- eistendng gilles M, .are :mounted in bearing l. 'lkets `lili, said aigles carrying rollers 8 with s nded o .be inserted when .the

angstige rg le eagles trailer are .to .be .Conlng cdt., .e anot r.

Arlrlll; `this .rsllfr 8 .Orl the luftgbl fdisk als mail@ le hooks "I`I' .which ar." stringab riiciunted .around ...man in .agrege .or the trailer- 'said' riceverete .with stgiidrlerrsupprts 2.2.1 '[Qnthe .l este' lll?? said silpbis lirlig recesses tiwlllh ther' with th ceases ,33 el .the .Swingable .Shocks EII Tform ci'rcular apertures vvhientle j tended .italie wn p .the .trennen Vvehicle L and" the .'.t'rlailer have bee connected 'in the way inclfieatedlinffull ,.fvS in .-.Fi'glA 1 ofthe drawings. `P`aw1s l'3 swinger-ble "aroundpins'43 in the frame I0 shall enter under projections 4I integral with the swingable hooks Il and retain the latter lattheir place around the rollers 8. Further bolts I5 adapted to cooperate with the hooks I3 are Xed to a turntable shaft 46 mounted in the frame IIJ. Bolts 41 serving as stopping members and Xed to a shaft 48 mounted in the frame I0 are adapted to rest against the hooks I I when the traction vehicle and the trailer have been connected together, Fig. 1. Arms 49, 50 fixed to the shafts 48 and 46 are connected to one another by a rod 40. The bolts 41 and I3 can be operated by a. crank 28 fixed to the shaft 46 and adapted to be locked in different positions.

` As mentioned above, the pawl I3 and the bolts I5\ and 41 lassume the positions shown in Fig. 1 when the traction vehicle and the trailer have di k .isprouded wanner.- I

fr' recess .3:3-having ,the `same radius v as been connected with one another. At disconnection it is possible by turning the crank 28 to release the pawls I3 from their engagement with the hooks II by means of the bolts I5 because said bolts by actuating projections 30 on the pawls I3 will cause that said pawls, against the action of springs 3| xed between arms secured on the pins 26 and 43, are brought out of their locking |positions. By the intermediary of the rod 40 the boltsIl'I are simultaneously brought out of engagement with the hooks I I. The positions then assumed by the elements are indicated in full lines in Fig. 5. Naturally, not until the,

support wheel I4 of the trailer has been caused to assume its position shown in dot and dash lines instead of the position shown in full lines in Fig. 1 the traction vehicle can be removed.` When, then, the tractor is moved forward, the rollers 8- will swing the hooks II upwardly out of their way, as indicated in dot and dash lines in Fig. 5, and nally also the bolts 41 will be swung away to the indicated positions. The positions which the elements now have been caused to assume are maintained until the traction vehicle and the trailer are to be connected again whereby the rollers S by actuating the projections 4I integral with the hooks II cause said hooks to engage the rollers 8 again. Then the other elements are returned by the crank 28 to the positions shown in full lines in Fig. 1.

The disks 2 and 3 are located on a sleeveshaped center bolt I6 surrounded by a bushing and traversed by a rod I1. In the illustrated embodiment there is below the lower stationary disk 2 provided a brake cylinder I8 which is in direct connection with the hydraulic brake system of the traction vehicle. The piston of said cylinder I8 is adapted to actuate a lever I9 which is adjustable to enable Variation of the brake eiect and which is adapted to cooperate with the rod I 'I traversing the center bolt. The rod I'I is in its turn in connection with the piston in a hydraulic brake cylinder 20 located on the frame I 0 of the trailer on the lower side of a cross stay 42 which is shown in Figs. 1 to 3 only, said cylinder being through a conduit 2| adapted to actuatev the brakes of the trailer. In case the traction vehicle is provided with mechanic brakes the cylinder I8 is replaced by another member suitable to be actuated by the arm I9 or the rod I'I. The member or members which are to cooperate with the rod I1 must of course be suited to the brake system of the traction vehicle'. Said brake system may be mechanic or hydraulic and work with vacuum or compressed air.

A device, for example a swingable hook Isa,

by means of which it is possible to stop the lever I9 actuated by the brake cylinder I8 below the disk 2 when the trailer is to be disconnected, is provided in the illustrated embodiment in order that it shall be possi-ble to brake the traction vehicle also when the trailer has been disconnected. Otherwise the rod II would naturally be pressed up and no braking would be exerted on the traction vehicle.

From the source of light of the traction vehicle there is drawn a line 23 to a contact plate 24 against which sliding contacts 25 located on the trailer work. Said contacts are connected with the stop and tail lights of the trailer through lines.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A connection between a tractor and a trailer comprising a lower disc secured to the frame of the tractor near the rear end thereof with its upper surface extending in a substantially horizontal plane, an upper disc coaxial with and rotatably supported on said lower disc, two horizontal axles mounted on said upper disc on opposite sides of the latters axis and having a common axis intersecting the aXis of the disc at right angles, two hooks pivoted to the forward end of the trailer and adapted to embrace said axles, respectively, and means to lock said hooks in their operative positions.

2. A connection, as claimed in claim l, in which said upper disc is provided with a plurality of perforations and a felt disc adapted to be saturated with a lubricant is disposed on said upper disc, a protective plate covering said felt disc and being secured to said upper disc.

3. A connection, as claimed in claim l, in which said locking means for said hooks includes for each hook a movable stop and an adjustable pawl mounted on said trailer and a single operating member connected to all said stops and pawls whereby` they may be operated in unison.

4. A connection, as claimed in claim 1, in which a hollow center bolt traverses said two discs axially, and said trailer comprises a brake control mechanism including an element which is located directly above the upper end of said hollow center bolt when the trailer is connected to the tractor, including means responsive to the operation of a brake mechanism on the tractor to transmit a force axially through Said hollow bolt in order to operate said brake mechanism of the trailer. y A

CARL JOHAN EDWIN RYDH. 

